Richardson, William B., 1944- Working in horticulture / William B. Richardson, Gary E. Moore. - New York : McGraw-Hill, 1980. - viii, 358 p. : ill. ; 25 cm. - Career preparation for agriculture/agribusiness . Includes index. Open access. Subjects--Topical Terms: Horticulture--Vocational guidance.Horticulture.Holture--Vocational guidance.